The film, scheduled to air March 31 on HBO, uses exclusive footage from inside the Iowa State Penitentiary to tell the story of a terminally ill inmate who spends the final days of his life sentence in a hospice unit staffed by prisoner volunteers.

“I am thrilled to have received the Oscar nomination,” says Barens, documentary specialist in the Jane Addams Center for Social Policy and Research.

“Never in my wildest dreams would I have thought ‘Prison Terminal: The Last Days of Private Jack Hall’ would go this far.

“I think it’s testament to the compassion, the determination and the human spirit essential in making a prison hospice program function and blossom — especially in an environment not normally conducive to the celebration of humanity.”

Barens lived and worked as producer and cameraman for six months inside the penitentiary. Given unprecedented access to the entire prison, he shot more than 300 hours of footage for the documentary, which is just under 40 minutes long.

The film is one of several projects underway at the center, which is directed by Creasie Finney Hairston, dean of the Jane Addams College of Social Work.

Barens has made three other documentaries related to prison life, including “Angola Prison Hospice: Opening the Door,” which Iowa State Penitentiary used as a training video to start its own hospice.

HBO’s “Prison Terminal: The Last Days of Private Jack Hall” will be released in theaters, ahead of the Academy Awards, with other Oscar-nominated short films. Showings in Chicago include the Music Box Theater.

Barens travels to Hollywood for the Oscar nominees luncheon next month.